<template>
  <div class="login-container">
    <div class="login-box"><!-- 在一个背景容器里面再定义一个容器 -->
      <div style="padding: 30px;background-color: white;margin-left: 225px;margin-bottom: 80px;box-shadow: 0 0 10px rgba(0,0,0,0.5)">
        <el-form :rules="data.rules" ref="formRef" :model="data.form" style="width: 300px" >
          <div style="margin-bottom: 30px; font-size: 24px; color: #0066bc;font-weight: bold;text-align: center">欢 迎 注 册</div>
          <el-form-item prop="username">
            <el-input size=large v-model="data.form.username" placeholder="请输入账号" prefix-icon="User"></el-input><!-- User需要导入一下 -->
          </el-form-item>
          <el-form-item prop="password">
            <el-input show-password size=large v-model="data.form.password" placeholder="请输入密码" prefix-icon="Lock"></el-input><!-- Lock需要导入一下 -->
          </el-form-item>
          <el-form-item prop="confirmPassword">
            <el-input show-password size=large v-model="data.form.confirmPassword" placeholder="请确认密码" prefix-icon="Lock"></el-input><!-- Lock需要导入一下 -->
          </el-form-item>
          <div style="margin-bottom: 20px">
            <el-button @click="register" size="large" style="width: 100%" type="primary">注 册</el-button>
          </div>
          <div style="text-align: right">已有账号？请<a style="color: blue;text-decoration: none" href="/login">登录</a></div>
        </el-form>
      </div>
    </div>
  </div>
</template>

<script setup>
import {reactive,ref} from "vue";
import {User,Lock} from "@element-plus/icons-vue"
import {ElMessage} from "element-plus";
import request from "@/utils/request.js";

const validatePass = (rule,value,callback) => {
  if (!value) {
    callback(new Error('请再次确认密码'))
  } else if (value !== data.form.password) {
    callback(new Error("俩次输入的密码不一致"))
  } else {
    callback()
  }
}//校验密码

const data = reactive({
  form: {},
  rules:{//定义表单输入规则，必填行
    username:[
      {required: true,message: '请输入账号', trigger:'blur'}//当用户离开当前输入字段（失去焦点）时，立即触发该字段的验证逻辑，避免用户填写完所有字段后才发现错误。
    ],
    password:[
      {required: true,message: '请输入密码', trigger:'blur'}//当用户离开当前输入字段（失去焦点）时，立即触发该字段的验证逻辑，避免用户填写完所有字段后才发现错误。
    ],//别忘了在相应地方加prop！！！
    confirmPassword:[
      { validator: validatePass, trigger:'blur' }
    ]
  }
})

const formRef = ref()

const register = () =>{
  formRef.value.validate((valid) => {
    if (valid) {
      request.post('/register', data.form).then(res => {
        if (res.code === '200') {//注册成功
          ElMessage.success('注册成功')
          setTimeout(()=>{
            location.href = '/login' //重定位
          },500)//等待500ms
        } else {
          ElMessage.error('账号已存在，请重新输入')
        }
      })
    }
  })
}
</script>

<style scoped>
.login-container{
  height: 100vh;/*vh是明确高度*/
  overflow: hidden;/*超过的页面隐藏掉*/
  background-image: url("@/assets/Login.png");/*导入背景图片*/
  background-size: cover;
  background-position: 0 -15px;
}
.login-box{
  width: 50%;
  height: 100%;
  display: flex;
  align-items: center;
  position: absolute;
  left: 50%;              /* 相对父容器左移50% */
  top: 50%;               /* 相对父容器上移50% */
  transform: translate(-50%, -50%); /* 自身宽高回退50% */
}
</style>